diff --git a/common.mk b/common.mk
index 70ccfaa..6a455fc 100644
--- a/common.mk
+++ b/common.mk
@@ -8,7 +8,7 @@ CARCH = -m2 -mb
 CFLAGS += -falign-functions=4 -ffunction-sections -fdata-sections -fshort-enums -ffreestanding -nostdlib
 CFLAGS += -Wall -Werror -Wfatal-errors -Wno-error=unused-variable -g -gdwarf-4 $(OPT)
 LDFLAGS = --gc-sections --no-warn-rwx-segment --print-memory-usage --entry=_start
-CXXFLAGS = -fno-exceptions -fno-rtti
+CXXFLAGS = -fno-exceptions -fno-rtti -fno-threadsafe-statics
 
 TARGET = sh2-none-elf-
 CC = $(TARGET)gcc
diff --git a/sh2.lds b/sh2.lds
index 306ba56..54386eb 100644
--- a/sh2.lds
+++ b/sh2.lds
@@ -28,13 +28,27 @@ SECTIONS
     *(.rodata)
   } > work_ram_h
 
+  .ctors ALIGN(4) : SUBALIGN(4)
+  {
+    KEEP(*(.ctors))
+    KEEP(*(.ctors.*))
+  } > work_ram_h
+
   .bss ALIGN(4) (NOLOAD) : SUBALIGN(4)
   {
     *(.bss)
   } > work_ram_h
 
+  .bss.work_ram_l ALIGN(4) (NOLOAD) : SUBALIGN(4)
+  {
+    *(.bss.work_ram_l)
+  } > work_ram_l
+
   __bss_link_start = ADDR(.bss);
   __bss_link_end = ADDR(.bss) + SIZEOF(.bss);
+
+  __ctors_link_start = ADDR(.ctors);
+  __ctors_link_end = ADDR(.ctors) + SIZEOF(.ctors);
 }
 
 smpc = 0x20100000;
diff --git a/smpc.h b/smpc.h
index df15caf..8cb9b67 100644
--- a/smpc.h
+++ b/smpc.h
@@ -316,3 +316,8 @@ enum digital_bit {
   DIGITAL__2__Z = (1 << 4),
   DIGITAL__2__L = (1 << 3),
 };
+
+//enum keyboard_bit {
+#define KEYBOARD__MAKE(oreg) (((oreg) & (0b1000)) != 0)
+#define KEYBOARD__BREAK(oreg) (((oreg) & (0b0001)) != 0)
+//};
diff --git a/start.cpp b/start.cpp
new file mode 100644
index 0000000..7f2a869
--- /dev/null
+++ b/start.cpp
@@ -0,0 +1,34 @@
+#include <stdint.h>
+
+extern "C" uint32_t __bss_link_start __asm("__bss_link_start");
+extern "C" uint32_t __bss_link_end __asm("__bss_link_end");
+
+typedef void(*init_t)(void);
+
+extern "C" uint32_t __ctors_link_start __asm("__ctors_link_start");
+extern "C" uint32_t __ctors_link_end __asm("__ctors_link_end");
+
+extern void main();
+
+extern "C"
+void start(void)
+{
+  uint32_t * start;
+  uint32_t * end;
+
+  start = &__bss_link_start;
+  end = &__bss_link_end;
+  while (start < end) {
+    *start++ = 0;
+  }
+
+  start = &__ctors_link_start;
+  end = &__ctors_link_end;
+  while (start < end) {
+    (reinterpret_cast<init_t>(*start++))();
+  }
+
+  main();
+
+  while (1);
+}
diff --git a/vdp2.h b/vdp2.h
index e26a2db..c761ba9 100644
--- a/vdp2.h
+++ b/vdp2.h
@@ -348,8 +348,8 @@ enum pncn0_bit {
   PNCN0__N0CNSM = (1 << 14),
   PNCN0__N0SPR = (1 << 9),
   PNCN0__N0SCC = (1 << 8),
-#define PNCN0__N0SPLT(n) (n << 5)
-#define PNCN0__N0SCN(n) (n << 0)
+#define PNCN0__N0SPLT(n) ((n) << 5)
+#define PNCN0__N0SCN(n) ((n) << 0)
 };
 
 enum pncn1_bit {
@@ -358,8 +358,8 @@ enum pncn1_bit {
   PNCN1__N1CNSM = (1 << 14),
   PNCN1__N1SPR = (1 << 9),
   PNCN1__N1SCC = (1 << 8),
-#define PNCN1__N1SPLT(n) (n << 5)
-#define PNCN1__N1SCN(n) (n << 0)
+#define PNCN1__N1SPLT(n) ((n) << 5)
+#define PNCN1__N1SCN(n) ((n) << 0)
 };
 
 enum pncn2_bit {
@@ -368,8 +368,8 @@ enum pncn2_bit {
   PNCN2__N2CNSM = (1 << 14),
   PNCN2__N2SPR = (1 << 9),
   PNCN2__N2SCC = (1 << 8),
-#define PNCN2__N2SPLT(n) (n << 5)
-#define PNCN2__N2SCN(n) (n << 0)
+#define PNCN2__N2SPLT(n) ((n) << 5)
+#define PNCN2__N2SCN(n) ((n) << 0)
 };
 
 enum pncn3_bit {
@@ -378,8 +378,8 @@ enum pncn3_bit {
   PNCN3__N3CNSM = (1 << 14),
   PNCN3__N3SPR = (1 << 9),
   PNCN3__N3SCC = (1 << 8),
-#define PNCN3__N3SPLT(n) (n << 5)
-#define PNCN3__N3SCN(n) (n << 0)
+#define PNCN3__N3SPLT(n) ((n) << 5)
+#define PNCN3__N3SCN(n) ((n) << 0)
 };
 
 enum pncr_bit {
@@ -388,8 +388,8 @@ enum pncr_bit {
   PNCR__R0CNSM = (1 << 14),
   PNCR__R0SPR = (1 << 9),
   PNCR__R0SCC = (1 << 8),
-#define PNCR__R0SPLT(n) (n << 5)
-#define PNCR__R0SCN(n) (n << 0)
+#define PNCR__R0SPLT(n) ((n) << 5)
+#define PNCR__R0SCN(n) ((n) << 0)
 };
 
 enum plsz_bit {
@@ -415,49 +415,49 @@ enum plsz_bit {
   PLSZ__N0PLSZ__2x2 = (0b11 << 0),
 };
 // enum mpofn_bit {
-#define MPOFN__N3MP(n) (n << 12)
-#define MPOFN__N2MP(n) (n << 8)
-#define MPOFN__N1MP(n) (n << 4)
-#define MPOFN__N0MP(n) (n << 0)
+#define MPOFN__N3MP(n) ((n) << 12)
+#define MPOFN__N2MP(n) ((n) << 8)
+#define MPOFN__N1MP(n) ((n) << 4)
+#define MPOFN__N0MP(n) ((n) << 0)
 // };
 // enum mpofr_bit {
-#define MPOFR__RBMP(n) (n << 4)
-#define MPOFR__RAMP(n) (n << 0)
+#define MPOFR__RBMP(n) ((n) << 4)
+#define MPOFR__RAMP(n) ((n) << 0)
 // };
 
 // 4.8 Maps § Map Selection Register
 
 // enum mpabn0_bit {
-#define MPABN0__N0MPB(n) (n << 8)
-#define MPABN0__N0MPA(n) (n << 0)
+#define MPABN0__N0MPB(n) ((n) << 8)
+#define MPABN0__N0MPA(n) ((n) << 0)
 // };
 // enum mpcdn0_bit {
-#define MPABN0__N0MPD(n) (n << 8)
-#define MPABN0__N0MPC(n) (n << 0)
+#define MPABN0__N0MPD(n) ((n) << 8)
+#define MPABN0__N0MPC(n) ((n) << 0)
 // };
 // enum mpabn1_bit {
-#define MPABN1__N1MPB(n) (n << 8)
-#define MPABN1__N1MPA(n) (n << 0)
+#define MPABN1__N1MPB(n) ((n) << 8)
+#define MPABN1__N1MPA(n) ((n) << 0)
 // };
 // enum mpcdn1_bit {
-#define MPABN1__N1MPD(n) (n << 8)
-#define MPABN1__N1MPC(n) (n << 0)
+#define MPABN1__N1MPD(n) ((n) << 8)
+#define MPABN1__N1MPC(n) ((n) << 0)
 // };
 // enum mpabn2_bit {
-#define MPABN2__N2MPB(n) (n << 8)
-#define MPABN2__N2MPA(n) (n << 0)
+#define MPABN2__N2MPB(n) ((n) << 8)
+#define MPABN2__N2MPA(n) ((n) << 0)
 // };
 // enum mpcdn2_bit {
-#define MPABN2__N2MPD(n) (n << 8)
-#define MPABN2__N2MPC(n) (n << 0)
+#define MPABN2__N2MPD(n) ((n) << 8)
+#define MPABN2__N2MPC(n) ((n) << 0)
 // };
 // enum mpabn3_bit {
-#define MPABN3__N3MPB(n) (n << 8)
-#define MPABN3__N3MPA(n) (n << 0)
+#define MPABN3__N3MPB(n) ((n) << 8)
+#define MPABN3__N3MPA(n) ((n) << 0)
 // };
 // enum mpcdn3_bit {
-#define MPABN3__N3MPD(n) (n << 8)
-#define MPABN3__N3MPC(n) (n << 0)
+#define MPABN3__N3MPD(n) ((n) << 8)
+#define MPABN3__N3MPC(n) ((n) << 0)
 // };
 // enum mpabra_bit {
 // };
@@ -622,20 +622,20 @@ enum bktau_bit {
 // enum sfccmd_bit {
 // };
 // enum prisa_bit {
-#define PRISA__S1PRIN(n) (n << 8)
-#define PRISA__S0PRIN(n) (n << 0)
+#define PRISA__S1PRIN(n) ((n) << 8)
+#define PRISA__S0PRIN(n) ((n) << 0)
 // };
 // enum prisb_bit {
-#define PRISA__S3PRIN(n) (n << 8)
-#define PRISA__S2PRIN(n) (n << 0)
+#define PRISA__S3PRIN(n) ((n) << 8)
+#define PRISA__S2PRIN(n) ((n) << 0)
 // };
 // enum prisc_bit {
-#define PRISA__S5PRIN(n) (n << 8)
-#define PRISA__S4PRIN(n) (n << 0)
+#define PRISA__S5PRIN(n) ((n) << 8)
+#define PRISA__S4PRIN(n) ((n) << 0)
 // };
 // enum prisd_bit {
-#define PRISA__S7PRIN(n) (n << 8)
-#define PRISA__S6PRIN(n) (n << 0)
+#define PRISA__S7PRIN(n) ((n) << 8)
+#define PRISA__S6PRIN(n) ((n) << 0)
 // };
 // enum prina_bit {
 // };
@@ -681,5 +681,8 @@ enum bktau_bit {
 // pattern name tables
 //
 
-#define PATTERN_NAME_TABLE_2WORD__CHARACTER(n) (n << 0)
-#define PATTERN_NAME_TABLE_2WORD__PALETTE(n) (n << 16)
+#define PATTERN_NAME_TABLE_2WORD__CHARACTER(n) ((n) << 0)
+#define PATTERN_NAME_TABLE_2WORD__PALETTE(n) ((n) << 16)
+
+#define PATTERN_NAME_TABLE_1WORD__PALETTE(n) (((n) & 0b1111) << 12)
+#define PATTERN_NAME_TABLE_1WORD__CHARACTER(n) (((n) & 0x3ff) << 0)